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Table 4 Postoperative clinical outcomes of bilateral simultaneous TKA between Groups I and II

From: Risk factors and outcomes in asymmetrical femoral component size for posterior referencing bilateral total knee arthroplasty: a matched pair analysis

Parameter

Group I

Group II

P value

Asymmetrical femoral component (n = 20)

Symmetrical femoral component (n = 20)

 

Mean Knee Society Score

 Pre-op

53.32 ± 11.63

50.30 ± 13.84

0.29

 6 weeks Post-op

78.55 ± 5.14

79.22 ± 4.55

0.53

 3 months Post-op

86.82 ± 5.69

87.50 ± 5.15

0.57

 6 months Post-op

91.95 ± 4.26

92.45 ± 4.16

0.59

 12 months Post-op

92.10 ± 4.25

92.52 ± 4.08

0.65

 24 months Post-op

92.17 ± 4.22

92.65 ± 4.02

0.60

Mean Functional Score

 Pre-op

45.5 ± 12.59

46.75 ± 10.03

0.62

 6 weeks Post-op

60.75 ± 12.38

61.25 ± 8.71

0.88

 3 months Post-op

73.25 ± 10.42

75.50 ± 8.25

0.45

 6 months Post-op

84.50 ± 6.67

85.25 ± 6.78

0.72

 12 months Post-op

84.25 ± 7.12

85.50 ± 6.47

0.56

 24 months Post-op

84.75 ± 7.15

85.75 ± 7.12

0.66

Mean Maximum Knee Flexion Difference (Each patient)

 Pre-op

5.50° ± 4.68°

4.70° ± 4.49°

0.58

 6 weeks Post-op

4.65° ± 3.76°

3.40° ± 3.59°

0.29

 3 months Post-op

3.15° ± 2.85°

2.80° ± 2.67°

0.69

 6 months Post-op

3.35° ± 4.04°

2.45° ± 2.82°

0.42

 12 months Post-op

2.70° ± 3.23°

2.25° ± 2.17°

0.62

 24 months Post-op

2.55° ± 3.02°

2.15° ± 1.93°

0.61

  1. data analyses were performed with Student’s t-test